Base for paint and the like.



UNITED STATES PATENT OFFICE. Q

i MATTHEW o. JAQUET, OF OMAHA, NEBRASKA, Assieuon OF ONE-HALF To WILLIAM W. POWERS, or CHICAGO, ILLINOIS.

BASE FOR PAINT AND THE LIKE.

Specification of Letters Patent.

- Patented Dec. 4, 1906.

To all whom it may concern! Beit known that I, MATTHEW C. J-AQUET, a c tizen of the United States, residing at Omaha, Douglas county, Nebraska, have invented a new and useful Base for Paint and the Like, of which the following is a specification.

My invention consists in the roduction .of a new composition.of matter W iich is a base for paints and the like used for the same general purposes and with the same general results as White lead and adapted to be employed as a substitutefor such white lead or to be intermixed therewith, as may be desired. My base when used. as asubstitute for white lead may be employed alone and mixed with a suitable paint vehicle, such as linseed-oil, or may be mixed with zinc oxid, thereby'producin new composition of mat I have made the discovery that pulverized mussel-shellssuch as clam-shells of the freshwater variety, for. instance possess the necessary properties or attributes to form one of the principal constituents or ingredicuts for a base for paint and the like, the

other ingredient'being a paint vehicle, prefe "erably linseed-oil, as usual, such shells comprising on analysis a considerable proportion of carbonate ofcalcium, a less proportion of silicate of magnesia, and a muchless proportion of organic matter, all of which substances have been found by me to possess the necessary properties to constitute a base for paint and the like when mixed with a suita able oil, such as linseed-oil or its equivalent.

My new composition of matter thus comprisespulverized mussel-shells of the freshwater species, a paint vehicle, such as linseedoil or its equivalent, the shells being crushed, ground, and otherwise treated, as hereinafter described, and then mixed with the linseedoil, in which mixture may be incorporated a suitable proportion of white lead or zinc oxid, or both, as hereinbefore suggested and as hereinafter more particularly explained. The resulting base is not only'equal in quality and properties to the white lead, but is much more economically produced, especially as the mussel-shells, which provide the main ingredient of my base, are comparatively inexpensive.

It, will be understood that my present indefinite description of my invention I will now proceed to describe a suitable process.

In practice the shells are run through a suitable crusher, which serves to break up the shells into small pieces, but not to pulverize them. The crushed shells are now intro-- ing any substance introduced fora thorough mixing thereof. a suitableamount of linseed-oil or its equiva- At this stage in the process lent is introduced, and according to present practice the following proportions are employed, to wit: shells, 92.5 percent; linseedoil, 7.5 per cent. As the final step of the process the mass or material after being thus thoroughly mixed is ground to the proper fineness by being passed through a suitable grinding-mill, such as an ordinary paint-mill.

The product resulting from this process is a white mass similar to the ordinary white lead in general appearance and capable of serving as a substitute therefor.

As hereinbefore stated, my base may be mixed or incorporated with the ordinary white lea-(L in which event I prefer to leave oxid with the pulverized shells and the linseed-oil, in which event I prefer to mix said ingredients in the following proportions, to wit: shells, sixty-five per cent; zinc oxid, twenty-five per cent. and linseed-oil, ten per cent.

It will be understood that by preference and as the preferred final step in the process the mass or material after being mixed as above described is thoroughly ground, so as to reduce the same to considerable fineness, the same being passed through an ordinary paint-mill or the like.

I claim- 1. As a new composition of matter, a base for paints and the like comprising pulverized mussel-shells and a suitable paint vehicle."

2. As a new composition of matter, a base for paints and the like comprising pulverized mussel-shells and linseed-oil.

3. As a new composition of matter, a base for paints and the like comprising pulverized clam-shells and a suitable paint vehicle.

4. As a new composition of matter, a base 7. As a new composition of matter, a base for paints and the like comprising pulverized mussel -shells, substantially sixty-five per cent, linseed-oil, substantially ten per cent. and zinc oxid, substantially twenty-five per cent.

8. As a new composition of matter, a base for paints and the like comprising pulverized mussel-shells, linseed-oil, white lead and zinc oXid.

MATTHEW C. JAQUET. Witnesses:

S. E. HIBBEN, LoUIs B. ERWIN. 

